Cellana
A shell of Cellana ornata
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Patellogastropoda
Superfamily:	Lottioidea
Family:	Nacellidae
Genus:	Cellana Adams, 1869
Type species
Nacella cernica Adams, 1869
Synonyms
Bertinia Jousseaume, 1883 Granopatella Pallary, 1920 Helcion (Helcioniscus) Dall, 1871 Helcioniscus Dall, 1871 Nacella (Cellana) H. Adams, 1869 (original rank)

Cellana is a genus of sea snails or limpets, marine gastropod molluscs in the family Nacellidae, the true limpets.^[1]

Distribution

This genus occurs in the temperate and tropical Indo-Pacific oceans, Hawaii (where they are known as ‘opihi and considered a delicacy) and around Australia and New Zealand. Species are also found around the coasts of Japan, the Red Sea, Mauritius, Madagascar, South Africa and the sub-Antartarctic Islands. One species, Cellana radiata, is cosmopolitan.

These sea snails feed by grazing on green macroalgae growing on rocky substrate in the intertidal zone. Some of these limpets can live up to 7 years, however most do not get older than 2–3 years. They reproduce by broadcasting their spawn in large, yolky eggs in great numbers (between 20,000 for C. flava and C. denticulata to 230,000 for C. ornata).

Species

Species within the genus Cellana include:^[1]

The sources given below, also mention the following species :

• Cellana ampla
• Cellana ardosioea Hombron & Jacquinot, 1841
• Cellana argentata Sowerby, 1839
• Cellana enneagona Reeve, 1854
• Cellana nigrisquamata Reeve, 1854
  • Cellana profunda mauritiana Pilsbry, 1891

Species brought into synonymy

• Cellana capensis (Gmelin, 1791): synonym of Cellana radiata (Born, 1778)
• Cellana cernica (Adams, 1869): synonym of Cellana livescens (Reeve, 1855)
• Cellana eudora Iredale, 1940: synonym of Cellana radiata orientalis (Pilsbry, 1891)
• Cellana garconi (Deshayes, 1863): synonym of Cellana livescens (Reeve, 1855)
• Cellana hedleyi W. R. B. Oliver, 1915: synonym of Cellana craticulata (Suter, 1905)
• Cellana laticostata (Blainville, 1825): synonym of Scutellastra laticostata (Blainville, 1825)
• Cellana sagittata A. A. Gould, 1846 : synonym of Cellana vitiensis Powell, 1973
• Cellana scopulina W. R. B. Oliver, 1926: synonym of Cellana craticulata (Suter, 1905)
• Cellana vulcanicus W. R. B. Oliver, 1915: synonym of Cellana craticulata (Suter, 1905)